Si2168-B40
DVB-T2/T/C Digital TV Demodulator
The Si2168B integrates DVB-T2, DVB-T, and DVB-C digital
demodulators into a single advanced CMOS technology
mixed-signal die for next generation terrestrial and legacy
cable TV standards. Leveraging Silicon Labs' proven digital
demodulation architecture, the Si2168B achieves excellent
reception performance while significantly minimizing
front-end design complexity, cost, and power dissipation.
Connecting the Si2168 to a terrestrial and cable hybrid TV
tuner or digital only tuner, such as Silicon Labs’ Si2178/58/
48 devices, results in a high performance and cost
optimized TV front-end solution.
Silicon Labs internally developed DVB-T2, including
T2-Lite, demodulator can accept a standard IF (36 MHz) or
low-IF input and support all modes specified by the
DVB-T2 standard. Main features of the DVB-T2 mode are
256 QAM with rotated constellations, SISO and MISO
support, FEF management, fully autonomous signal
acquisition including automatic L1 signaling parsing,
600 kHz acquisition range, support for all pilot patterns,
and DVB-T/T2 auto-detection. The DVB-T and DVB-C
demodulators are enhanced versions of proven and
broadly used Si2167B/68/69 Silicon Labs devices.
The Si2168B offers an on-chip blind scanning algorithm for
the DVB-C standards as well as blind lock. The Si2168B
can use a crystal, as a reference clock, or be driven by an
external clock signal from the tuner.
The Si2168B programmable transport stream interface
provides a flexible range of output modes and is fully
compatible with all MPEG decoders or conditional access
modules to support any customer application.
Features
- DVB-T2 and T2-Lite (ETSI EN 302 755-V1.3.1)
- COFDM demodulator and FEC (LDPC + BCH)
decoder
- Bandwidth: 1.7, 5, 6, 7 or 8 MHz (and extended BW)
- Supports up to 255 PLP(s) and outputs the data PLP
plus the common PLP on a single TS
- Scrambling of L1 post-signaling supported
- NorDig Unified v2.4 and D-Book 7 V2 compliant
- Firmware control (loaded in ROM)
- DVB-T (ETSI EN 300 744)
- COFDM demodulator and enhanced FEC decoder
- NorDig Unified 2.4, D-Book 7 V2compliant
- DVB-C (ETSI EN 300 429) / ITU J.83 Annex A/B/C
- QAM demodulator and FEC decoder
- 1 to 7.2 MSymbol/s
- C-Book compliant
- I2C serial bus interfaces (master and host)
- GPIOs and multi-purpose ports for independent AGCs
- Firmware control for upgradeability
- Flexible TS interface with serial or parallel single output
- Fast lock times for all standards including DVB-T2
- Only two power supplies: 1.2 and 3.3 V
- Pin-to-pin and software compatibility with the Si2168
and Si2164/62/60/66B/67B/69B
- 7x7 mm, QFN-48 pin package, Pb-free/RoHS compliant
Applications
-
iDTV: on-board or in a NIM
Advanced STB
PC-TV accessories
PVR, DVD, and Blu-Ray disc recorders
1.2, 3.3V
DSP &
SYNCHRO
ADC
OSC
& PLL
TUN_SDA
TUN_SCL
Digital Demodulator
EQUALIZER
DVB-T2/T
DEMOD
EQUALIZER
FRONT
END
Ext. Clk or Xtal
CLK_IN_OUT
DVB-C
DEMOD
TS_SYNC
RS
VITERBI
LDPC
BCH
TS_VAL
TS_CLK
TS_DATA
8
DVB-T2/T/C
FEC MODULE
HDTV MPEG S.o.C.
TS_ERR/
GPIO_1
AGCs
TC_ADC_P
TC_ADC_N
GPIO
INTERFACE
Silicon Labs
TV Tuner
(Si217x/5x/4x)
CTRL
MPEG TS
MP_A/_B/_C/_D
RESETB
GPIO_0
Description
Si2168
I2C
SWITCH
Copyright © 2013 by Silicon Laboratories
I2C
I/F
HOST_SDA
HOST_SCL
8.12.2013
Si2168-B40
DVB-T2/T/C Digital TV Demodulator
Selected Electrical Specifications
(TA = –10 to 75 °C)
Parameter
Test Condition
Min
Typ
Max
Unit
4
—
30
MHz
16
—
30
MHz
—
420
—
mW
2
DVB-T
—
190
—
mW
DVB-C3
—
180
—
mW
2 layer PCB
—
35
—
°C/W
4 layer PCB
—
23
—
°C/W
General
Input clock reference
Supported XTAL frequency
DVB-T21
Total power consumption
Thermal resistance (JA)
Power Supplies
VDD_VCORE
1.14
1.20
1.30
V
VDD_VANA
3.00
3.30
3.60
V
VDD_VIO
3.00
3.30
3.60
V
Notes:
1. Highest power demodulation case: 8 MHz, 256 QAM, 32K FFT, CR=3/5, GI=1/128, PP7, C/N at picture failure.
2. Highest power demodulation case: 8 MHz, 64QAM, IF Mode, 8K, Parallel TS Output.
3. Highest power demodulation case: 6.9 Mbaud, 256 QAM, IF Mode, Parallel TS Output.
30
29
28
TS_DATA[7]
31
GND
32
TS_ERR/GPIO_1
XTAL_O
33
VDD_VCORE
XTAL_I/CLK_IN
34
MP_C
ADDR
35
RESETB
GND
36
MP_D
VDD_VANA
Pin Assignments
27
26
25
NC 37
24 TS_DATA[6]
NC 38
23 TS_DATA[5]
NC 39
22 VDD_VIO
Si2168
NC 40
TC_ADC_P 41
21 GND
20 VDD_VCORE
(GND_PAD)
TC_ADC_N 42
NC 43
19 TS_DATA[4]
18 TS_DATA[3]
QFN-48
7x7mm
CLK_IN_OUT 44
SDA_MAST 45
17 TS_DATA[2]
16 TS_DATA[1]
SCL_MAST 46
15 TS_DATA[0]/TS_SER
GND 47
14 TS_CLK
VDD_VCORE 48
6
7
MP_A
GPIO_0
NC
RSVD
NC
VDD_VCORE
8
9
10
11
12
TS_VAL
5
SDA_HOST
4
SCL_HOST
3
GND
2
VDD_VIO
1
MP_B
13 TS_SYNC
Selection Guide
Part #
Description
Si2168-B40-GM/R
Terrestrial and Cable Digital TV Demodulator for DVB-T2/T/C, 7x7 mm QFN-48
Digital Demodulator
Copyright © 2013 by Silicon Laboratories
8.12.2013
Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.
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